Unexciting accommodation (4)
I believe the answer is:
flat
I believe this clue is a double definition.
'unexciting' is the first definition.
(I've seen this before)
'accommodation' is the second definition.
(thesaurus)
(Other definitions for flat that I've seen before include "Level; pad" , "unexciting" , "Apartment; plane" , "without qualification" , "Not hilly" .)